.login-container {
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    transform: translate(-50%, -50%);
    display: flex;
    justify-content: center;
    align-items: center;
}
@keyframes myanimation {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 0% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}